Simulation of indoor climate of a dwelling heated by convection and radiation

Simulation of indoor climate of a dwelling heated by convection and radiation

Paper in proceedings (conference paper)

Some of the important parameters of the indoor climate in a dwelling are the distribution of air temperatures and surface temperatures of the internal structures. The actual CFD (Computational Fluid Dynamics) calculation by computer software FLUENT is based on a numerical solution of differential equations which describe fluid flow, heat convection and heat transfer by radiation. These differential equations are solved by numerical control - volumes method. The results can be considered trustworthy only if proper models of turbulence and radiation are used. Suitable turbulence models are RNG k- e model and RSM (Reynods Stress Model). Suitable radiation models are then DO (Discrete Ordinates) and DTRM (Discrete Transfer Radiation Model).

Some of the important parameters of the indoor climate in a dwelling are the distribution of air temperatures and surface temperatures of the internal structures. The actual CFD (Computational Fluid Dynamics) calculation by computer software FLUENT is based on a numerical solution of differential equations which describe fluid flow, heat convection and heat transfer by radiation. These differential equations are solved by numerical control - volumes method. The results can be considered trustworthy only if proper models of turbulence and radiation are used. Suitable turbulence models are RNG k- e model and RSM (Reynods Stress Model). Suitable radiation models are then DO (Discrete Ordinates) and DTRM (Discrete Transfer Radiation Model).

CFD, Fluid Flow, Convective and Conductive Heat Transfer, Radiative Heat Transfer, thermal comfort

CFD, Fluid Flow, Convective and Conductive Heat Transfer, Radiative Heat Transfer, thermal comfort

ŠIKULA, O.

19.04.2006

Technische Universität Wien

Vienna, Austria

3-902463-05-8

Proceedings of the Junior Scientist Conference 2006

333

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